[GenKnot]

It may be behind the left cylinder muffler protective cover

Since this gen uses a stepper motor to control the throttle plate, the governor may be a sensor input to the controller...just a wild guess there. Normally with a mechanically operated throttle, the adjustment would be on the linkage to the carburetor/throttle.

 

[Rick Quebec]

Since this gen uses a stepper motor to control the throttle plate, the governor may be a sensor input to the controller...just a wild guess there. Normally with a mechanically operated throttle, the adjustment would be on the linkage to the carburetor/throttle.

Tell you about the little blue motor with the white wire.

 

[GenKnot]

Tell you about the little blue motor with the white wire.

That's it.

 

[Rick Quebec]

If I understand correctly my cat is dead! I will have to send my beast to an affiliated repair center. But the basis of my request is that I understand that there is still no problem operating my sensitive electronic device such as microwave, TV, WIFI, heat pump. I may be worrying a little too much! I think I will add a 50AMP surge protector like this to my set up. Thank you and sorry because English is not my first language.

Progressive Industries SSP-50XL Surge Protector with Cover - 50 Amp : Amazon.ca: Electronics

Progressive Industries SSP-50XL Surge Protector with Cover - 50 Amp : Amazon.ca: Electronics

www.amazon.ca

 

[GenKnot]

If I understand correctly my cat is dead!

I'm not sure what you mean by that.

I understand that there is still no problem operating my sensitive electronic device such as microwave, TV, WIFI, heat pump.

The WGEN12000DF has a max THD of 5% so that should be okay (max 3% is better). As for the 243V and 63.2Hz you mentioned in your opening post, the 243V shouldn't be a problem. The 63.2Hz seems a little high to me, but may not pose a problem. Normally you should see it at about 62Hz max with no load on the gen. It should go down as the gen is loaded.

Since it seems that this WGEN12000DF has an electronic control there may not be a way to change the frequency without changing out the control board for one that is factory set a little lower. The WGEN12000DF is fairly new and there is just not a lot of information about it. Perhaps if you contact Westinghouse and express your concern about the high frequency they might send you a new control board...you just never know until you ask.

The surge protector that you listed looks nice. It is always good to have one even though they have nothing to do with THD or frequency. They also make surge protectors to go into the main breaker panel if you are connecting the gen through that to your loads.

 

[Rick Quebec]

I'm not sure what you mean by that.

The WGEN12000DF has a max THD of 5% so that should be okay (max 3% is better). As for the 243V and 63.2Hz you mentioned in your opening post, the 243V shouldn't be a problem. The 63.2Hz seems a little high to me, but may not pose a problem. Normally you should see it at about 62Hz max with no load on the gen. It should go down as the gen is loaded.

Since it seems that this WGEN12000DF has an electronic control there may not be a way to change the frequency without changing out the control board for one that is factory set a little lower. The WGEN12000DF is fairly new and there is just not a lot of information about it. Perhaps if you contact Westinghouse and express your concern about the high frequency they might send you a new control board...you just never know until you ask.

The surge protector that you listed looks nice. It is always good to have one even though they have nothing to do with THD or frequency. They also make surge protectors to go into the main breaker panel if you are connecting the gen through that to your loads.

Thanks! Sory about "my cat is dead" it's a French expression which means that "I will have no choice" to ask Westinghouse again for an explanation or a new control card. Thank you very much for your reply I am very grateful.

 

[flopshot]

I'd like to see a photo taken from above the engine showing the carburator linkage. The photo from the side shows nothing relevant.

 

[Rick Quebec]

I'd like to see a photo taken from above the engine showing the carburator linkage. The photo from the side shows nothing relevant.

OK

 

[flopshot]

Still not seeing the carb linkage. Is there a spring going to the carb from a small plate with multiple holes ? Move the throttle shaft by hand and see what it's connected to. There should be spring resistance. Follow the spring.

 

[Rick Quebec]

Still not seeing the carb linkage. Is there a spring going to the carb from a small plate with multiple holes ? Move the throttle shaft by hand and see what it's connected to. There should be spring resistance. Follow the spring.

No no there is nothing like this, everything seems to work via a solenoid or a small motor (blue parts with white wire)

 

[flopshot]

Sounds like a step motor throttle control. Not sure how you can adjust that. There has to be a controller that's not doing it's job.

 

[Rick Quebec]

Sounds like a step motor throttle control. Not sure how you can adjust that. There has to be a controller that's not doing it's job.

The Westinghouse repair services have just answered me and told me that the generator seems to be working in factory settings and that everything should go down with a significant load....I'm still skeptical...

 

[flopshot]

I guess all you can do is monitor it under various loads. Any smart stuff in the house might not like 63 Hz.

 

[GenKnot]

No no there is nothing like this, everything seems to work via a solenoid or a small motor (blue parts with white wire)

Yes, it is operated by a stepper motor instead of mechanical linkage. A centrifugal governor gear is mentioned in the parts list, but apparently it is not used in this particular generator. They may use this engine on another generator that does have the mechanically controlled governor linkage.

On the schematic, this is the stepper motor that controls the throttle....

So, the stepper motor is operated by a control board assembly (the 549407 part shown) which would be sensing the generator output frequency and adjusting the stepper motor as needed. In my opinion, they have the frequency set too high. But, if they are not willing to send another controller, and you choose not to return the generator, then you are stuck with it being a little high as it can't be adjusted like a mechanical governor.

Just to be sure that your meter is calibrated, check the line frequency at a wall plug and see if the meter reads 60Hz.

 

[Columbotrek]

UPS will most likely accept 62 to 58 hz before switching to it's battery and inverter. The user guide will say what it is.

 

[Rick Quebec]

Yes, it is operated by a stepper motor instead of mechanical linkage. A centrifugal governor gear is mentioned in the parts list, but apparently it is not used in this particular generator. They may use this engine on another generator that does have the mechanically controlled governor linkage.

View attachment 13905

On the schematic, this is the stepper motor that controls the throttle....

View attachment 13906

So, the stepper motor is operated by a control board assembly (the 549407 part shown) which would be sensing the generator output frequency and adjusting the stepper motor as needed. In my opinion, they have the frequency set too high. But, if they are not willing to send another controller, and you choose not to return the generator, then you are stuck with it being a little high as it can't be adjusted like a mechanical governor.

Just to be sure that your meter is calibrated, check the line frequency at a wall plug and see if the meter reads 60Hz.

I checked my multimeter and it reads 60.00Hz in a wall outlet.

 

[Rick Quebec]

I just found on a site "Gasoline to Propane Natural Gas Conversion Fits Westinghouse WGen12000 Generator" and found this photo of the carburetor. I don't know if there really is an adjustment screw? I believe we see the 2 fuel control solenoids. I will investigate.

 

[GenKnot]

I believe we see the 2 fuel control solenoids.

Those are stepper motors. One controls the auto choke (bottom in the photo) and the other one (top in the photo) is the throttle control.

I don't know if there really is an adjustment screw?

There won't be an adjustment screw. The stepper motor is controlled by the electronics and is set by the factory. In this case, they got it a little too high IMO.

 

[Rick Quebec]

OK thanks!

 

[flopshot]

What's with the oversize hose clamps ?